Tool-handle for interchangeable tools



(N0 Mo'del.)

I E. WALKER.

TOOL HANDLE FOR INTBRGHANGEABLE TOOLS.

No. 357,429. Patented rebys, 1887.

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Artur EDWIN WVALKEIQOF ERIE, PENNSYLVANIA.

TOOL-HANDLE FOR INTERCHANGEABLE TOOLS.

SPECIFICATION forming part of Letters Patent No, 357,429, dated February 8, 1887.

I Application filed April 24, 1886. SerialNo. 200,079. (No model.)

To aZZ whom it may concern:

Be it known that I, EDWIN WALKER, a citizen of the United States, residing at-Erie,in the county of Erie and State of Pennsylvania, have invented certain new and useful Improvements in Tool-Handles and Interchangeable Tools therefor; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, forming part ofthis specification.

My invention relates to tool-handles and interchangeable tools therefor; and it consists in the improvements hereinafter set forth and explained.

My invention is illustrated in the accompanying drawings, in which Figure I shows a side elevation of one of my improved tool handies and tools. Fig. 2 shows a perspective view of the tool-handle (seen from the under side) detached from the tool. Fig. 3 shows a like perspective view of my improved toolshank adapted to fit my improved tool-handle. Fig. 4 shows avertical section through the center thereof of a modified form of my improved,

method of securing the tool-shank to the handle. Fig. 5 shows a modified form of my improved tool-handle with a section of the tool therein. 7

Like letters refer to like parts in all the figures.

In the construction of my improved tool, A is the wooden portion of the handle, and B the socket portion. I construct the socket portion B of the handle of metal, preferably of malleable iron, with a recess, 0, therein to receive the shank D of a tool. The recess 0, I construct rectangular in shape, open at the front end and bottom, substantially as shown in Fig. 2. On each side of the recess 0, I constructa groove, E, which extends back about one-half of the length of the recess 0, and at the back end of the recess 0, I place a cushion, F, of rawhide or other slightly-resilient substance, to receive the impact of the end at of the toolshank D, and in the upper side of the handle B, I place a thumb-screw, G, which penetrates into the recess 0 somewhat in front of the cushion F, as and for the purpose hereinafter specified.

The shank D of the tool is constructed of proper shape and size to fit the recess 0, and is provided on either side with lugs or wings H, which fit into the grooves E E on each side of the recess 0. On the upper side of the shank D, near its rear end, I construct a cross-groove, I, adapted to receive the end of the thumb-screw G, so that when the thumbscrew G is screwed down upon the end of the shank D it is held. firmly in place in the recess 0 and cannot be withdrawn therefrom. WVhen, however, it is desired to remove the tool therefrom, the screw can be turned back out of the notch I, when the tool will readily slip out of the recess 0.-

It will readily be seen that any number of tool-shanks may be fitted for use in one and the same handle. For example, one handle may be used for all sizes of chisels and gouges, the shanks of all of them being alike.

In Fig. 5 I show a modified shape, B, of the handle B, such as is convenient for use in paring fiat surfaces with either chisels or gouges. In all respects, except as .to' the shape of the handle B, the device shown in Fig. 5 is the same as that shown in Figs. 1,2, and 3.

In Fig. 4 I have shown a modified construction of my joint. In this construction the shank D of the tool is the same in all respects as that shown in Fig. 3, heretofore described. The slot 0 is also the same as that shown and described in Fig. 2, except that the thumbscrew G in this construction is set farther back upon the handle B", the handle B being cored out to receive a flat spring, J, which is riveted to the inside of the handle at K, and extends forward under the point of the thumb screw G to the notch I in the tool-shank D, where it is provided with a hooked end, J adapted to operate in the notch I, the thumb-screw G operating upon the top of the spring J to retain the hook J in place in the notch I when desired, though this form of fastening is adapted to be used with the springcatch alone for light work without tightening the thumb-screw G down upon it.

Having thus fully described my invention,

so as to enable others skilled in the art to which it appertains to construct and use the same, what I claim as new, and desire to secure by Letters Patent of the United States, is-

l. The combination, in a tool-handle, of'a longitudinal recess having a resilient cushion in the back end thereof adapted to receive the end of a tool-shank, grooves on each side of the front end of said recess adapted to receive lugs or wings on the sides of atool-shank, and

a thumbserew adapted to operate in a notch on the top of the back end of the tool-shank, substantially as and for the purpose set forth.

2. The combination of a tool-handle having a longitudinal recess provided with longitudinal grooves in the sides thereof and a cushion, of rawhide or other resilient substance, in the back end thereofiand a thumb-screw in the top of said recess, with a tool-shank adapted to fit into said recess, having lugs or wings on the 20 sides thereof adapted to fit into the grooves in the sides of the recess, and a notch adapted to receive the end of the thumb-screw, substantially as and for the purpose set forth.

In testimony whereof I affix my signature in 25 

